hich metal is the best conductor of electricity? Choose from the choices below: Gold Aluminum Copper Mercury

Q: Chlorine gas reacts with aqueous sodium bromide to form aqueous sodium chloride and liquid bromine .…

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Q: P.S. 6. A miner was digging up some ore (rock). The ore contains 84% lead(II) sulfide by mass. How…

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Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: Discuss any one of the bottom approaches for nanoparticles preparation

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Q: Use your knowledge of chemical reactions to identify the type of chemical reaction, predict the…

A: The chemical reaction is the representation of an equation that involves the chemical symbols of all…

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A: Given, 2PbS + 3O2 ---------->  2Pb + 2SO3 mass of PbS react = 2.54 g mass of O2 react = 1.88 g…

Q: FeSO4   +   Potassium phosphate  à  Iron (II) phosphate  +  K2SO4 Identify the spectator ions

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Q: Cs(s) + FeS(aq)

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Q: Which one of the following statements is true  Mg(s) + 2 HCl(aq) → MgCl₂(s) + H₂(g) A) Mg is the…

A: Oxidizing agent is the substance which take electrons or gain electrons from the other substance.…

Q: Suppose you analyze a 35.4 g sample of bleach and determine that there are 2.26 g of sodium…

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Q: d e BeCl2 (s) + H₂O(g) → BeO(s) + HCl(g) BeCl₂ (s) + H₂O(g) →→→ BeO(s) + BaH₂ (s) + H₂O(l) → Ba(OH)2…

A: Check the number of elements on both side and try to balance it.

Q: A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For…

A: Molarity of the Cu+2 stock solution = 2.71 M Dilution formula isM₁V₁ = M₂V₂where M₁ and V₁ represent…

Q: During which of the following processes will the chemical composition of a substance remain…

A: Sublimation: A process of conversion of solid directly into gas Oxidation: Increase in oxidation…

Q: The rock in a particular iron ore deposit contains 69% Fe2O3 by mass. Part A How many kilograms of…

A: We will first calculate the mass of Fe2O3 required in order to get 4.1x103 Kg of iron. After…

Q: Suppose you need 7.0 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to…

A: Given data :- Length of required tow chain = 7.0 mGrade of tow chain = 70 Diameter of tow chain =…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Hi, as you have posted 2 questions and have not mentioned which one you want us to solve for you.…

Q: Answer the following questions regarding this chemical reaction: Cu(s) + HNO3(aq) -->…

A: Since moles of Cu(NO3)2  we want to produce = mass/molar mass molar mass = 187.5 g/mol => moles…

Q: 2 Al(s)+3CuCl,(aq)→3Cu(s)+2 AlCl, (aq) A piece of aluminum metal is placed in an aqueous solution of…

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Q: From a reaction that decomposes water to produce hydrogen and oxygen gas, 10.0 g of hydrogen and…

A: Introduction: According to law of conservation of mass; In all physical and chemical changes ,there…

Q: (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water OUCOTIOU TI

A: Step 1) a) copper(II) nitrate : Cu(NO3)2 It is also known as cupric nitrate formula or copper…

Q: You wish to prepare 211 grams of 16.6 % Mg(CH3CO0)2. You will need grams of magnesium acetate and mL…

A: Mass of solution is = 211 g Percent concentration of Mg(CH3COO)2 is = 16.6 % Density of water is =…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: Answer:- This question is answered by using the simple concept of physical change and the chemical…

Q: An alloy contains 10.8 % titanium by mass and has a density of 13.98 g/cm3. Titanium-49 has an…

A: Number of atoms = 8,926,980,280,926,177,000,000 atoms. Avogadro’s constant = 6.023 × 1023 atoms.…

Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: Solid sodium oxide and gaseous water are produced by the decomposition of solid sodium hydroxide…

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Q: What is the total amount of charge needed in order to complete the process? 4.041 x 104 C   8.083…

A: Given;

Q: How to convert mercury into gold?

A: This may possible by neuclear change as shown my handwriten solution.

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

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Q: Nitrogen dioxide gas is produced by the reaction of oxygen gas and nitrogen monoxide gas. Write a…

A: Nitrogen dioxide gas is obtained by the reaction of oxygen gas and nitrogen monoxide gas.  NO=…

Q: Fill in the Blanks Chemical Price/kg (in dollars) NaOH 21.17 CaCl2 41.28 КОН 31.38 CuSO4 93.32…

A: Solution is provided in the image below.

Q: Lithium metal has an atomic radius of 152 pm. The molar mass of lithium is 6.94 g/mol and Avogadro`s…

A: Atomic radius = 152 pm = 152 × 10-10 cm  Avadagro constant = 6.022 × 1023  per mol  Molar mass of…

Q: How do you measure the amount of heavy metals concentration in soil?

A: Heavy metals refer to any metallic chemical element that has a relatively high density and is toxic…

Q: You are given a crushed sample that is a mixture of limestone (calcium carbonate), lime (calcium…

A: As we are given with the sample which consists a mixture of calcium carbonate, lime and sand, and we…

Q: A 20.0-gram sample of impure NaClO3 produces 4.72 L of oxygen (STP). What is the percentage purity…

A: Percentage purity can be calculated by back calculation of the amount of O2 should be produced.

Q: Consider the following reaction:  4 Al + 3 O2 →  2 Al2O3 A mixture of 82.5 g of aluminum and 117 g…

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Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

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Q: Balance the following chemical reaction. Enter the sum of the balanced coefficients as your answer.…

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Q: Willa weighs a clean, dry, empty crucible and finds it to have a mass of 95.83 g. After putting a…

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Q: In theory, how could one use silver nitrate (AgNO3), water, and aluminum wire to increase his or her…

A: To increase wealth we need can make some changes in available compounds to increase their value.…

Q: Balance the following chemical reaction. Enter the sum of the balanced coefficients as your answer.…

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Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

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Q: Classify the solid state of the following substances as ionic crystals, covalent crystals, molecular…

A: Solids are classifed as Ionic solids, covalent solids, molecular solids and metallic solids. This…

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Given: Percent mass of carbon = 67.31 %. Percent mass of hydrogen = 6.978 %. Percent mass of…

Q: Chemical equation involved: Baking soda + Vinegar Sodium Acetate + Heat Write the correct chemical…

A: We have given that  Chemical equation involved: Baking soda + Vinegar ------> Sodium Acetate +…

Q: A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride: Li + F2 →…

A: Given, A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride:Li +…